{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "application/vnd.jupyter.widget-view+json": {
       "model_id": "e152547dd69d46fcbcb602cf9f92e50b",
       "version_major": 2,
       "version_minor": 0
      },
      "text/plain": [
       "Output()"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "import ipywidgets as widgets\n",
    "from IPython.display import clear_output\n",
    "output1 = widgets.Output()\n",
    "output1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "hi\n"
     ]
    }
   ],
   "source": [
    "print(\"hi\")\n",
    "with output1:\n",
    "    print(\"in output\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [],
   "source": [
    "with output1:\n",
    "    raise ValueError(\"trigger msg_type=error\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "application/vnd.jupyter.widget-view+json": {
       "model_id": "44dc393cd7c6461a8c4901f85becfc0e",
       "version_major": 2,
       "version_minor": 0
      },
      "text/plain": [
       "Output()"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "import ipywidgets as widgets\n",
    "output2 = widgets.Output()\n",
    "output2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "hi2\n"
     ]
    }
   ],
   "source": [
    "print(\"hi2\")\n",
    "with output2:\n",
    "    print(\"in output2\")\n",
    "    clear_output(wait=True)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "application/vnd.jupyter.widget-view+json": {
       "model_id": "d6cd7a1de3494d2daff23c6d4ffe42ee",
       "version_major": 2,
       "version_minor": 0
      },
      "text/plain": [
       "Output()"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "import ipywidgets as widgets\n",
    "output3 = widgets.Output()\n",
    "output3"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "hi3\n"
     ]
    }
   ],
   "source": [
    "print(\"hi3\")\n",
    "with output3:\n",
    "    print(\"hello\")\n",
    "    clear_output(wait=True)\n",
    "    print(\"world\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "application/vnd.jupyter.widget-view+json": {
       "model_id": "10517a9d5b1d4ea386945642894dd898",
       "version_major": 2,
       "version_minor": 0
      },
      "text/plain": [
       "Output()"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "import ipywidgets as widgets\n",
    "output4 = widgets.Output()\n",
    "output4"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "hi4\n"
     ]
    }
   ],
   "source": [
    "print(\"hi4\")\n",
    "with output4:\n",
    "    print(\"hello world\")\n",
    "    clear_output()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "application/vnd.jupyter.widget-view+json": {
       "model_id": "37f7ba6a9ecc4c19b519e718cd12aafe",
       "version_major": 2,
       "version_minor": 0
      },
      "text/plain": [
       "Output()"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "import ipywidgets as widgets\n",
    "output5 = widgets.Output()\n",
    "output5"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(\"hi5\")\n",
    "with output5:\n",
    "    display(\"hello world\") # this is not a stream but plain text\n",
    "clear_output()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "application/vnd.jupyter.widget-view+json": {
       "model_id": "4fb0ee7e557440109c08547514f03c7b",
       "version_major": 2,
       "version_minor": 0
      },
      "text/plain": [
       "Output()"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "import ipywidgets as widgets\n",
    "output_outer = widgets.Output()\n",
    "output_inner = widgets.Output()\n",
    "output_inner"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "application/vnd.jupyter.widget-view+json": {
       "model_id": "01ea355e26484c13b1caaaf6d29ac0f2",
       "version_major": 2,
       "version_minor": 0
      },
      "text/plain": [
       "Output()"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "output_outer"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {},
   "outputs": [],
   "source": [
    "with output_inner:\n",
    "    print('in inner')\n",
    "    with output_outer:\n",
    "        print('in outer')\n",
    "    print('also in inner')"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "language": "python"
  },
  "language_info": {
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    "version": 3
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   "mimetype": "text/x-python",
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      "state": {
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       "outputs": [
        {
         "name": "stdout",
         "output_type": "stream",
         "text": "in outer\n"
        }
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       "outputs": [
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         "output_type": "stream",
         "text": "in outer\n"
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       "outputs": [
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         "output_type": "stream",
         "text": "in output2\n"
        }
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       "outputs": [
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         "output_type": "stream",
         "text": "in outer\n"
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       "outputs": [
        {
         "name": "stdout",
         "output_type": "stream",
         "text": "in output\n"
        },
        {
         "ename": "ValueError",
         "evalue": "trigger msg_type=error",
         "output_type": "error",
         "traceback": [
          "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
          "\u001b[0;31mValueError\u001b[0m                                Traceback (most recent call last)",
          "\u001b[0;32m<ipython-input-15-7f84f5558b68>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0;32mwith\u001b[0m \u001b[0moutput1\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 2\u001b[0;31m     \u001b[0;32mraise\u001b[0m \u001b[0mValueError\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"trigger msg_type=error\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
          "\u001b[0;31mValueError\u001b[0m: trigger msg_type=error"
         ]
        }
       ]
      }
     },
     "d314a6ef74d947f3a2149bdf9b8b57a3": {
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       "outputs": [
        {
         "name": "stdout",
         "output_type": "stream",
         "text": "in output\n"
        }
       ]
      }
     },
     "d5e88b6a26114d6da0b7af215aa2c3bb": {
      "model_module": "@jupyter-widgets/base",
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      "model_module": "@jupyter-widgets/output",
      "model_module_version": "1.0.0",
      "model_name": "OutputModel",
      "state": {
       "layout": "IPY_MODEL_091f6e59c48442b1bdb13320b4f6605d",
       "outputs": [
        {
         "name": "stdout",
         "output_type": "stream",
         "text": "world\n"
        }
       ]
      }
     },
     "dbf140d66ba247b7847c0f5642b7f607": {
      "model_module": "@jupyter-widgets/base",
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     "e152547dd69d46fcbcb602cf9f92e50b": {
      "model_module": "@jupyter-widgets/output",
      "model_module_version": "1.0.0",
      "model_name": "OutputModel",
      "state": {
       "layout": "IPY_MODEL_de7ba4c0eed941a3b52fa940387d1415",
       "outputs": [
        {
         "name": "stdout",
         "output_type": "stream",
         "text": "in output\n"
        },
        {
         "ename": "ValueError",
         "evalue": "trigger msg_type=error",
         "output_type": "error",
         "traceback": [
          "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
          "\u001b[0;31mValueError\u001b[0m                                Traceback (most recent call last)",
          "\u001b[0;32m<ipython-input-3-7f84f5558b68>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0;32mwith\u001b[0m \u001b[0moutput1\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 2\u001b[0;31m     \u001b[0;32mraise\u001b[0m \u001b[0mValueError\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"trigger msg_type=error\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
          "\u001b[0;31mValueError\u001b[0m: trigger msg_type=error"
         ]
        }
       ]
      }
     },
     "e27795e5a4f14450b8c9590cac51cb6b": {
      "model_module": "@jupyter-widgets/base",
      "model_module_version": "1.2.0",
      "model_name": "LayoutModel",
      "state": {}
     },
     "e3e20af587534a9bb3fa413951ceb28d": {
      "model_module": "@jupyter-widgets/output",
      "model_module_version": "1.0.0",
      "model_name": "OutputModel",
      "state": {
       "layout": "IPY_MODEL_e27795e5a4f14450b8c9590cac51cb6b",
       "outputs": [
        {
         "name": "stdout",
         "output_type": "stream",
         "text": "world\n"
        }
       ]
      }
     }
    },
    "version_major": 2,
    "version_minor": 0
   }
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}
